China's surplus of unmarriageable men poses a stark dilemma for Xi and other leaders as they set the country's economic course for the next five years.

Chinese President Xi Jinping reviews troops on a car on Tiananmen Square during the military parade marking the 70th Anniversary of the Victory of Chinese People’s Resistance against Japanese Aggression and World Anti-Fascist War at Tiananmen Square in Beijing, China, 03 September 2015.
EPA/WU HONGOktober 15, 2017